Skip to content
FareTell

Bangkok to Koh Samui flights in August 2027 from $85 BKK, DMK → USM

Suvarnabhumi Airport (BKK), Don Mueang International Airport (DMK) → Koh Samui Airport (USM)

For departures in August 2027, the cheapest return found recently is $172 with Bangkok Airways, 11 Aug 2027 – 19 Aug 2027, found yesterday. The cheapest one-way found recently is $85 with Bangkok Airways, 7 Aug 2027, found 3 days ago.

Return

In August 2027, the cheapest return fare on each of 16 departure dates is usually $173 to $174. Across all 223 departure dates we hold on this route, it is usually $173 to $243. Of the 11 months with enough return fares to compare, August 2027 is usually the cheapest.

Cheapest return found recently

$172

11 Aug 2027 – 19 Aug 2027 · Bangkok Airways

Suvarnabhumi Airport (BKK) → Koh Samui Airport (USM)

out nonstop, back nonstop

found yesterday

See prices for these datesCheck today's price

Cheapest we hold, of any age

$167

20 Aug 2027 – 29 Aug 2027 · Bangkok Airways

Suvarnabhumi Airport (BKK) → Koh Samui Airport (USM)

out nonstop, back nonstop

found 6 days ago

See prices for these datesCheck today's price

FareTell may earn a commission when you book through a partner.

The cheapest dates in August 2027

DatesFromAirlineStopsFound
20 Aug 2027 – 29 Aug 2027$167Bangkok Airwaysout nonstop, back nonstopfound 6 days agoSee prices for these dates
3 Aug 2027 – 19 Aug 2027$172Bangkok Airwaysout nonstop, back nonstopfound 3 days agoSee prices for these dates
11 Aug 2027 – 19 Aug 2027$172Bangkok Airwaysout nonstop, back nonstopfound yesterdaySee prices for these dates
2 Aug 2027 – 16 Aug 2027$173Bangkok Airwaysout nonstop, back nonstopfound 3 days agoSee prices for these dates
5 Aug 2027 – 16 Aug 2027$173Bangkok Airwaysout nonstop, back nonstopfound 3 days agoSee prices for these dates

Every date we hold

16 departure dates

1 Aug 2027 – 15 Aug 2027: $174, found 4 days ago2 Aug 2027 – 16 Aug 2027: $173, found 3 days ago3 Aug 2027 – 19 Aug 2027: $172, found 3 days ago4 Aug 2027 – 15 Aug 2027: $174, found 4 days ago5 Aug 2027 – 16 Aug 2027: $173, found 3 days ago6 Aug 2027 – 17 Aug 2027: $173, found 3 days ago7 Aug 2027 – 21 Aug 2027: $173, found 3 days ago8 Aug 2027 – 19 Aug 2027: $173, found 2 days ago9 Aug 2027 – 21 Aug 2027: $174, found 5 days ago11 Aug 2027 – 19 Aug 2027: $172, found yesterday12 Aug 2027 – 26 Aug 2027: $174, found 6 days ago14 Aug 2027 – 3 Sept 2027: $173, found 2 days ago15 Aug 2027 – 28 Aug 2027: $174, found 5 days ago16 Aug 2027 – 28 Aug 2027: $173, found 3 days ago17 Aug 2027 – 31 Aug 2027: $173, found 2 days ago20 Aug 2027 – 29 Aug 2027: $167, found 6 days agoAug
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
1 Aug 2027 – 15 Aug 2027$174Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 4 days agoSee prices for these dates
2 Aug 2027 – 16 Aug 2027$173Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 3 days agoSee prices for these dates
3 Aug 2027 – 19 Aug 2027$172Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 3 days agoSee prices for these dates
4 Aug 2027 – 15 Aug 2027$174Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 4 days agoSee prices for these dates
5 Aug 2027 – 16 Aug 2027$173Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 3 days agoSee prices for these dates
6 Aug 2027 – 17 Aug 2027$173Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 3 days agoSee prices for these dates
7 Aug 2027 – 21 Aug 2027$173Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 3 days agoSee prices for these dates
8 Aug 2027 – 19 Aug 2027$173Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 2 days agoSee prices for these dates
9 Aug 2027 – 21 Aug 2027$174Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 5 days agoSee prices for these dates
11 Aug 2027 – 19 Aug 2027$172Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound yesterdaySee prices for these dates
12 Aug 2027 – 26 Aug 2027$174Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 6 days agoSee prices for these dates
14 Aug 2027 – 3 Sept 2027$173Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 2 days agoSee prices for these dates
15 Aug 2027 – 28 Aug 2027$174Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 5 days agoSee prices for these dates
16 Aug 2027 – 28 Aug 2027$173Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 3 days agoSee prices for these dates
17 Aug 2027 – 31 Aug 2027$173Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 2 days agoSee prices for these dates
20 Aug 2027 – 29 Aug 2027$167Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)out nonstop, back nonstopfound 6 days agoSee prices for these dates

Which month looks cheapest?

November 2026 is the cheapest month — from $104.

November 2026From $104Cheapest seen14 departure dates15 Nov – 15 Nov · found 5 days agoSee prices for these datesEvery date in November 2026
December 2026From $20730 departure dates9 Dec – 24 Dec · found 7 days agoSee prices for these datesEvery date in December 2026
January 2027From $17430 departure dates27 Jan 2027 – 10 Mar 2027 · found 6 days agoSee prices for these datesEvery date in January 2027
February 2027From $17327 departure dates17 Feb 2027 – 16 Mar 2027 · found 2 days agoSee prices for these datesEvery date in February 2027
March 2027From $16326 departure dates3 Mar 2027 – 11 Mar 2027 · found 7 days agoSee prices for these datesEvery date in March 2027
April 2027From $16623 departure dates21 Apr 2027 – 20 May 2027 · found 5 days agoSee prices for these datesEvery date in April 2027
May 2027From $17114 departure dates30 May 2027 – 28 Jun 2027 · found yesterdaySee prices for these datesEvery date in May 2027
June 2027From $17214 departure dates3 Jun 2027 – 24 Jun 2027 · found 2 days agoSee prices for these datesEvery date in June 2027
July 2027From $15920 departure dates17 Jul 2027 – 4 Aug 2027 · found 3 days agoSee prices for these datesEvery date in July 2027
August 2027From $16716 departure dates20 Aug 2027 – 29 Aug 2027 · found 6 days agoSee prices for these dates
September 2027From $1722 departure dates3 Sept 2027 – 28 Sept 2027 · found 2 days agoSee prices for these dates
October 2027From $1737 departure dates2 Oct 2027 – 16 Oct 2027 · found 2 days agoSee prices for these datesEvery date in October 2027

One-way

We hold one-way fares on only 2 departure dates in August 2027, too few to say what one usually costs.

Cheapest one-way found recently

$85

7 Aug 2027 · Bangkok Airways

Suvarnabhumi Airport (BKK) → Koh Samui Airport (USM)

nonstop

found 3 days ago

Open this tripCheck today's price

Cheapest we hold, of any age

$84

12 Aug 2027 · Bangkok Airways

Suvarnabhumi Airport (BKK) → Koh Samui Airport (USM)

nonstop

found 6 days ago

Open this tripCheck today's price

FareTell may earn a commission when you book through a partner.

The cheapest dates in August 2027

DatesFromAirlineStopsFound
12 Aug 2027$84Bangkok Airwaysnonstopfound 6 days agoOpen this trip
7 Aug 2027$85Bangkok Airwaysnonstopfound 3 days agoOpen this trip

Every date we hold

2 departure dates

7 Aug 2027: $85, found 3 days ago12 Aug 2027: $84, found 6 days agoAug
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
7 Aug 2027$85Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)nonstopfound 3 days agoOpen this trip
12 Aug 2027$84Bangkok AirwaysSuvarnabhumi Airport (BKK) → Koh Samui Airport (USM)nonstopfound 6 days agoOpen this trip

Which month looks cheapest?

November 2026 is the cheapest month — from $40.

November 2026From $40Cheapest seen4 departure dates19 Nov · found 2 days agoOpen this tripEvery date in November 2026
April 2027From $841 departure date15 Apr 2027 · found 5 days agoOpen this tripEvery date in April 2027
May 2027From $817 departure dates1 May 2027 · found 2 days agoOpen this tripEvery date in May 2027
June 2027From $846 departure dates6 Jun 2027 · found 6 days agoOpen this tripEvery date in June 2027
July 2027From $844 departure dates3 Jul 2027 · found 2 days agoOpen this tripEvery date in July 2027
August 2027From $842 departure dates12 Aug 2027 · found 6 days agoOpen this trip
September 2027From $841 departure date4 Sept 2027 · found 3 days agoOpen this trip
October 2027From $851 departure date6 Oct 2027 · found 7 days agoOpen this tripEvery date in October 2027

Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work